mackey



H. N. MACKEY.

Churn.

- Patented April'28, 1857.

'No. 1 7;:59. I

UNITED STATES PATENT OFFICE.

H. N. MACKEY, OF MORGANTOWVN, VIRGINIA.

GI-IURN.

Specification of Letters Patent No. 17,159, dated April 28, 1857.

To all whom it may concern:

Be it known that I, H. N. MACKEY, of Morgantown, in the county ofMonongalia and State of Virginia, have invented anew and usefulImprovement in Ohurns; and I do hereby declare that the following is afull, clear, and exact description of the construction and operation ofthe same, reference being had to the annexed drawing, forming part ofthis specification, in which Figure 1 is a top View of the churn withcover rem0vedand Fig. 2 is a side View showing interior.

Similar characters of reference in the several figures denote the samepart.

The nature of my invention consists in combining with oblique Wings uponinclined shafts, a system of double headed, self acting pistons passingthrough said wings and operating substantially as hereinafter set forth.

In the drawing B is the body of the churn,

I across which run the inclined shafts C 0,

each provided with wings W W. These shafts rotate in opposite directionsby the gearing connection 9 g. The wings are perforated, and throughsaid perforations pass a system of double headed pistons 03 a, fittingloosely and having a reciprocating movement by the action of gravity, asthe shafts rotate. The heads of these pistons act effectively in cuttingup the currents produced by the wings, and moreover the bodies of thepistons and the perforations of the wings give numerous frictionsurfaces where the formation of particles of butter will commence andthus furnish nuclei for the aggregation of the mass.

I claim- I The combination of the oblique wings, with the double headedself acting pistons, passing through them, operating as, and for thepurposes set forth.

In testimony whereof, I have hereunto signed my name before twosubscribing witnesses.

H. N. MACKEY. Witnesses:

JOHN HAYMAKER, F. W. GARRAoo.

